A heating control system for a baking apparatus

Abstract

The disclosure provides a heating control system of a baking equipment, belonging to the technical field of heating control. The heating control system of the baking equipment comprises a temperature detection module, a humidity detection module, a central control module, a temperature setting module, a temperature control module and a temperature control device. The output end of the temperature detection module is connected to the input end of the temperature setting module. The output end of the temperature setting module is connected to the input end of the temperature control module. The output end of the temperature control module is connected to the temperature control device. The output end of the humidity detection module is connected to the input end of the central control module. The output end of the central control module is connected to the control end of the temperature setting module. The temperature detection module is used to detect the baking temperature inside the baking equipment, and the humidity detection module is used to detect the baking humidity inside the baking equipment. The disclosure can improve the stability and reliability of temperature control.

Description

Technical Field

[0001] This disclosure relates to the field of heating control technology, and in particular to a heating control system for a baking apparatus. Background Technology

[0002] In the food industry, baking is one of the core processes that determines product quality, directly affecting the taste, color, and nutrient retention of food. For example, baked goods such as cookies and bread require specific temperature profiles and baking times to complete the process.

[0003] Traditional baking equipment's heating elements always operate at a constant power. This makes it impossible to meet the needs of automated temperature control. For example, most baking equipment uses fixed temperature range control, resulting in mediocre baking results.

[0004] Therefore, an intelligent heating control system for baking equipment is needed to improve baking results. Utility Model Content

[0005] This disclosure provides a heating control system for a baking apparatus to improve the baking effect.

[0006] This disclosure provides a heating control system for a baking equipment, including: a temperature detection module, a humidity detection module, a central control module, a temperature setting module, a temperature control module, and a temperature control device; The output of the temperature detection module is connected to the input of the temperature setting module; the output of the temperature setting module is connected to the input of the temperature control module. The output of the temperature control module is connected to the temperature control equipment; The output of the humidity detection module is connected to the input of the central control module; the output of the central control module is connected to the control terminal of the temperature setting module. The temperature detection module is used to detect the baking temperature inside the baking equipment, and the humidity detection module is used to detect the baking humidity inside the baking equipment.

[0007] In one exemplary embodiment of this disclosure, the temperature setting module includes: an upper temperature setting unit and a lower temperature setting unit; The control terminal of the temperature upper limit setting unit is connected to the first output terminal of the central control module; The control terminal of the temperature limit setting unit is connected to the second output terminal of the central control module.

[0008] In one exemplary embodiment of this disclosure, the temperature upper limit setting unit includes: a switch K1, a sliding resistor RP1, a sliding resistor RP2, and a sliding resistor RP3; Switch K1 is a single-pole three-throw switch; the stationary terminal of switch K1 is connected to the output terminal of the temperature detection module, the first moving terminal of switch K1 is connected to the first terminal of sliding resistor RP1, the second moving terminal of switch K1 is connected to the first terminal of sliding resistor RP2, and the third moving terminal of switch K1 is connected to the first terminal of sliding resistor RP3; the control terminal of switch K1 is connected to the central control module. The second terminals of sliding resistors RP1, RP2, and RP3 are all grounded. The sliding terminals of sliding resistors RP1, RP2, and RP3 are all connected to the threshold input terminal of the temperature control module.

[0009] In one exemplary embodiment of this disclosure, the temperature control module includes: a temperature control chip U1, a capacitor C3, a heating indicator LED1, a diode D2, and a relay J1; Temperature control equipment, including: heating equipment; The grounding terminal of temperature control chip U1 is grounded through capacitor C3; the control terminal of temperature control chip U1 is grounded; the trigger terminal of temperature control chip U1 is connected to the lower limit setting unit; the threshold input terminal of temperature control chip U1 is connected to the upper limit setting unit. The reset terminal and power supply terminal of the temperature control chip U1 are both connected to the power supply; the output terminal of the temperature control chip U1 is connected to the anode of the heating indicator LED1. The cathode of the heating indicator LED1 is connected to the cathode of diode D2 and the first input terminal of relay J1 respectively; the second input terminal of relay J1 is grounded, the first output terminal of relay J1 is connected to the power supply terminal of the heating device; the second output terminal of relay J1 is connected to the power supply. The grounding terminal of the heating equipment is grounded.

[0010] In one exemplary embodiment of this disclosure, the humidity detection module includes: a humidity sensor, a first window comparator, a second window comparator, and a third window comparator; The humidity sensor is connected to the input terminals of the first window comparator, the second window comparator, and the third window comparator, respectively. The non-inverting input of the first window comparator is used to receive the humidity reference signal Vref1, and the inverting input of the first window comparator is used to receive the humidity reference signal Vref2. The non-inverting input of the second window comparator is used to receive the humidity reference signal Vref3, and the inverting input of the second window comparator is used to receive the humidity reference signal Vref4. The non-inverting input of the third window comparator is used to receive the humidity reference signal Vref5, and the inverting input of the third window comparator is used to receive the humidity reference signal Vref6. The outputs of the first window comparator, the second window comparator, and the third window comparator are all connected to the central control module.

[0011] In one exemplary embodiment of this disclosure, a heating control system for a baking apparatus further includes: a temperature anomaly handling module; Temperature control equipment, including: cooling equipment; The temperature anomaly handling module is connected to the cooling equipment.

[0012] In one exemplary embodiment of this disclosure, the temperature anomaly handling module includes: a thermistor RT2, a resistor R1, a resistor R2, a resistor R3, a sliding resistor RP7, an operational amplifier U2, a transistor Q1, a cooling indicator LED2, and a relay J2; The first terminal of the thermistor RT2, the first terminal of the sliding resistor RP7, and the sliding terminal of the sliding resistor RP7 are all connected to the power supply. The second terminal of the thermistor RT2 and the first terminal of the resistor R1 are both connected to the inverting input terminal of the operational amplifier U2; The second terminal of the sliding resistor RP7 and the first terminal of the resistor R2 are both connected to the non-inverting input terminal of the operational amplifier U2; The second terminals of both resistor R1 and resistor R2 are grounded. The output terminal of operational amplifier U2 is connected to the non-inverting input terminal of operational amplifier U2 through resistor R3; The output of operational amplifier U2 is connected to the base of transistor Q1; The first input terminal and the first output terminal of relay J2 are both connected to the power supply. The second input terminal of relay J2 and the ground terminal of the cooling device are both connected to the collector of transistor Q1. The second output terminal of relay J2 is connected to the power supply terminal of the cooling device. The emitter of transistor Q1 is connected to the anode of cooling indicator LED2; the cathode of cooling indicator LED2 is grounded.

[0013] In one exemplary embodiment of this disclosure, a heating control system for a baking apparatus further includes: an alarm module; The power supply terminal of the alarm module is connected to the cathode of the cooling indicator LED2; the grounding terminal of the alarm module is grounded.

[0014] The beneficial effects of the heating control system for a baking apparatus provided in this embodiment are as follows: This disclosure utilizes a temperature setting module to compare the detected actual temperature with a preset temperature range, thereby achieving precise temperature control. This helps prevent overheating or undercooling, ensuring the stability and efficiency of the baking process. Furthermore, this disclosure employs a humidity detection module to detect the humidity of the baking equipment and send it to a central control module. The central control module then controls the temperature setting module to set different temperature ranges, thereby enhancing the intelligence of temperature control and achieving better baking results. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a heating control system for a baking apparatus provided in an embodiment of this disclosure; Figure 2 This is a schematic diagram of the heating control system of the second type of baking equipment provided in this embodiment; Figure 3 This is a schematic diagram of the heating control system of the third type of baking equipment provided in this embodiment; Figure 4 This is a schematic diagram of the heating control system of the fourth type of baking equipment provided in this embodiment. Detailed Implementation

[0017] To enable those skilled in the art to better understand this solution, the technical solutions in the embodiments of this solution will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this solution, not all of them. Based on the embodiments of this solution, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this solution.

[0018] The term "comprising" and any other variations thereof in the specification, claims, and accompanying drawings of this invention mean "including but not limited to," and are intended to cover a non-exclusive inclusion, not limited to the examples listed herein. Furthermore, the terms "first" and "second," etc., are used to distinguish different objects, not to describe a specific order.

[0019] The implementation of this disclosure will be described in detail below with reference to the specific accompanying drawings: Figure 1 This is a schematic diagram of the structure of a heating control system for a baking apparatus provided in an embodiment of this disclosure. (Refer to...) Figure 1 The heating control system of the baking equipment includes: a temperature detection module 10, a humidity detection module 11, a central control module 12, a temperature setting module 13, a temperature control module 14, and a temperature control device 15; The output terminal of the temperature detection module 10 is connected to the input terminal of the temperature setting module 13; the output terminal of the temperature setting module 13 is connected to the input terminal of the temperature control module 14. The output of the temperature control module 14 is connected to the temperature control device 15; The output terminal of the humidity detection module 11 is connected to the input terminal of the central control module 12; the output terminal of the central control module 12 is connected to the control terminal of the temperature setting module 13. Temperature detection module 10 is used to detect the baking temperature inside the baking equipment, and humidity detection module 11 is used to detect the baking humidity inside the baking equipment.

[0020] In this embodiment, the temperature detection module 10 detects the baking temperature inside the baking equipment in real time and transmits the detected temperature data to the temperature setting module 13. After receiving the actual temperature from the temperature detection module 10, the temperature setting module 13 compares it with a preset temperature range and transmits the comparison result to the temperature control module 14. Based on the received signal, the temperature control module 14 sends a control command to the temperature control device 15, thereby controlling the temperature control device 15 to heat or stop heating, so that the temperature inside the baking equipment is stabilized within a certain range.

[0021] The humidity sensor 111 can detect the humidity inside the baking equipment in real time and determine the current baking stage based on the humidity. This can be achieved through the following embodiment: Figure 3 This is a schematic diagram of the heating control system of the third type of baking equipment provided in this embodiment. See also... Figure 3 In one embodiment of this disclosure, the humidity detection module 11 includes: a humidity sensor 111, a first window comparator 112, a second window comparator 113, and a third window comparator 114. The humidity sensor 111 is connected to the input terminals of the first window comparator 112, the second window comparator 113, and the third window comparator 114, respectively. The non-inverting input of the first window comparator 112 is used to receive the humidity reference signal Vref1, and the inverting input of the first window comparator 112 is used to receive the humidity reference signal Vref2. The non-inverting input of the second window comparator 113 is used to receive the humidity reference signal Vref3, and the inverting input of the second window comparator 113 is used to receive the humidity reference signal Vref4. The non-inverting input of the third window comparator 114 is used to receive the humidity reference signal Vref5, and the inverting input of the third window comparator 114 is used to receive the humidity reference signal Vref6. The outputs of the first window comparator 112, the second window comparator 113, and the third window comparator 114 are all connected to the central control module 12.

[0022] In this embodiment, considering that during the baking process, the moisture in the material continuously evaporates into the air, causing changes in the moisture content of the air after baking. As baking progresses, the moisture content of the material (in the case of biscuits, the material is flour paste) gradually decreases, and the moisture evaporated into the air also gradually decreases. The moisture content of the air after baking will exhibit a certain pattern of change, which can be used to determine the stage of baking. The humidity reference signal Vref1 can be a voltage signal corresponding to 80% relative humidity, and the humidity reference signal Vref2 can be a voltage signal corresponding to 90% relative humidity, which corresponds to the initial stage of baking. The humidity reference signals Vref3, Vref4, Vref5, and Vref6 can be preset.

[0023] The central control module 12 can determine the current baking stage based on the high-level signal received from the window comparator. Different baking stages correspond to different heating temperatures. For example, receiving a high-level output from the first window comparator 112 indicates the initial baking stage. For instance, when baking cookies, the dough temperature is low when it first enters the baking equipment. A lower temperature can be set at this stage to prevent surface moisture from boiling instantly and forming a hard crust, preventing internal moisture from escaping and resulting in a burnt exterior and a soggy center. When the central control module 12 receives a high-level signal from the second window comparator 113, it indicates the moisture content of the baking material has decreased, indicating the middle baking stage. At this point, the heating temperature needs to be appropriately increased to ensure the cookies mature quickly and brown, resulting in a dry and crispy finished product. When the central control module 12 receives a high-level signal from the third window comparator 114, it indicates the moisture content of the baking material has further decreased, indicating the later baking stage. This prevents over-drying and a decline in material quality. Additionally, cookies are in an expanded state at high temperatures; if they suddenly come into contact with room temperature, the large temperature difference between the inside and outside can cause severe contraction and surface cracking. Therefore, the heating temperature can be lowered.

[0024] When the central control module 12 receives high-level signals from different window comparators, it controls the temperature setting module 13 to set different temperature ranges, thereby achieving a better baking effect. It should be noted that this embodiment uses biscuits as an example for explanation. Relevant personnel can adjust the upper and lower limits of the windows of the first window comparator 112, the second window comparator 113, and the third window comparator 114, as well as the temperature range corresponding to each stage, based on the properties of the baking material and actual needs.

[0025] As can be seen from the above, this disclosure, through the temperature setting module 13, can compare the detected actual temperature with the preset temperature range, thereby achieving precise temperature control, helping to prevent overheating or overcooling, and ensuring the stability and efficiency of the baking process. This disclosure also uses the humidity detection module 11 to detect the humidity of the baking equipment and send it to the central control module 12. The central control module 12 controls the temperature setting module 13 to set different temperature ranges, thereby improving the intelligence of temperature control and achieving better baking results.

[0026] Figure 2 This is a schematic diagram of the heating control system of the second type of baking equipment provided in this embodiment. Figure 4 This is a schematic diagram of the heating control system of the fourth type of baking equipment provided in this disclosure. See also... Figure 2 and Figure 4 In one embodiment of this disclosure, the temperature setting module 13 includes: a temperature upper limit setting unit 131 and a temperature lower limit setting unit 132; The control terminal of the temperature upper limit setting unit 131 is connected to the first output terminal of the central control module 12; The control terminal of the temperature limit setting unit 132 is connected to the second output terminal of the central control module 12.

[0027] The temperature upper limit setting unit 131 includes: switch K1, sliding resistor RP1, sliding resistor RP2 and sliding resistor RP3; Switch K1 is a single-pole three-throw switch; the stationary terminal of switch K1 is connected to the output terminal of temperature detection module 10, the first moving terminal of switch K1 is connected to the first terminal of sliding resistor RP1, the second moving terminal of switch K1 is connected to the first terminal of sliding resistor RP2, and the third moving terminal of switch K1 is connected to the first terminal of sliding resistor RP3; the control terminal of switch K1 is connected to central control module 12. The second terminals of sliding resistors RP1, RP2, and RP3 are all grounded. The sliding terminals of sliding resistors RP1, RP2, and RP3 are all connected to the threshold input terminal of the temperature control module 14.

[0028] The temperature limit setting unit 132 includes: switch K2, sliding resistor RP4, sliding resistor RP5 and sliding resistor RP6; Switch K2 is a single-pole three-throw switch; the stationary terminal of switch K2 is connected to the output terminal of temperature detection module 10, the first moving terminal of switch K2 is connected to the first terminal of sliding resistor RP4, the second moving terminal of switch K2 is connected to the first terminal of sliding resistor RP5, and the third moving terminal of switch K2 is connected to the first terminal of sliding resistor RP6; the control terminal of switch K2 is connected to central control module 12. The second terminals of sliding resistors RP4, RP5, and RP6 are all grounded. The sliding terminals of sliding resistors RP4, RP5, and RP6 are all connected to the trigger input terminal of temperature control module 14.

[0029] Temperature control module 14 includes: temperature control chip U1, capacitor C3, heating indicator LED1, diode D2 and relay J1; Temperature control equipment 15 includes: heating equipment; The grounding terminal of temperature control chip U1 is grounded through capacitor C3; the control terminal of temperature control chip U1 is grounded; the trigger terminal of temperature control chip U1 is connected to the lower limit setting unit; the threshold input terminal of temperature control chip U1 is connected to the upper limit setting unit. The reset terminal and power supply terminal of the temperature control chip U1 are both connected to the power supply; the output terminal of the temperature control chip U1 is connected to the anode of the heating indicator LED1. The cathode of the heating indicator LED1 is connected to the cathode of diode D2 and the first input terminal of relay J1 respectively; the second input terminal of relay J1 is grounded, the first output terminal of relay J1 is connected to the power supply terminal of the heating device; the second output terminal of relay J1 is connected to the power supply. The grounding terminal of the heating equipment is grounded.

[0030] In this embodiment, the initial state of switch K1 is connected to the first terminal of resistor RP1, and the initial state of switch K2 is connected to the first terminal of resistor RP6. The temperature detection module 10 can be a thermistor RT1, which has a negative temperature coefficient, meaning that its resistance decreases as the temperature increases. At this time, the voltage drop across resistors RP1 and RP6 will change.

[0031] When the voltage at the trigger input terminal of temperature control chip U1 is lower than one-third of the power supply voltage, temperature control chip U1 operates in the set state, its output terminal outputs a high level, the heating indicator LED1 illuminates, relay J1 is energized and clicks, and the heating device is connected to the power supply. When the temperature rises to the point where the voltage at the threshold input terminal of temperature control chip U1 is higher than two-thirds of the power supply voltage, temperature control chip U1 operates in the reset state. At this time, the output terminal of heating control chip U1 outputs a low level, the heating indicator LED1 goes out, relay J1 loses voltage, the switch opens, and the heating device stops working. The model of temperature control chip U1 can be 555.

[0032] The central control module 12 determines the changes in the baking stage based on the humidity information detected by the humidity detection module 11, and controls switches K1 and K2 to connect the corresponding sliding resistors accordingly.

[0033] As can be seen from the above, this disclosure allows the central control module 12 to switch different resistance combinations at different baking stages through switches K1 and K2, thereby achieving dynamic adjustment of the temperature setpoint to adapt to the needs of different products or baking stages. This disclosure, through the temperature control module 14, can accurately monitor and respond to temperature changes inside the baking equipment. When the temperature is below the set lower limit, the temperature control chip U1 controls the heating equipment to start; when the temperature is above the set upper limit, the temperature control chip U1 controls the heating to stop, thereby ensuring that the baking temperature is always maintained within a safe and efficient range, improving the accuracy and reliability of the baking equipment's temperature control.

[0034] In one embodiment of this disclosure, a heating control system for a baking apparatus further includes: a temperature anomaly handling module 16; Temperature control equipment 15 includes: cooling equipment; The temperature anomaly handling module 16 is connected to the cooling equipment.

[0035] The temperature anomaly handling module 16 includes: a thermistor RT2, a resistor R1, a resistor R2, a resistor R3, a sliding resistor RP7, an operational amplifier U2, a transistor Q1, a cooling indicator LED2, and a relay J2; The first terminal of the thermistor RT2, the first terminal of the sliding resistor RP7, and the sliding terminal of the sliding resistor RP7 are all connected to the power supply. The second terminal of the thermistor RT2 and the first terminal of the resistor R1 are both connected to the inverting input terminal of the operational amplifier U2; The second terminal of the sliding resistor RP7 and the first terminal of the resistor R2 are both connected to the non-inverting input terminal of the operational amplifier U2; The second terminals of both resistor R1 and resistor R2 are grounded. The output terminal of operational amplifier U2 is connected to the non-inverting input terminal of operational amplifier U2 through resistor R3; The output of operational amplifier U2 is connected to the base of transistor Q1; The first input terminal and the first output terminal of relay J2 are both connected to the power supply. The second input terminal of relay J2 and the ground terminal of the cooling device are both connected to the collector of transistor Q1. The second output terminal of relay J2 is connected to the power supply terminal of the cooling device. The emitter of transistor Q1 is connected to the anode of cooling indicator LED2; the cathode of cooling indicator LED2 is grounded.

[0036] A heating control system for a baking apparatus further includes: an alarm module; The power supply terminal of the alarm module is connected to the cathode of the cooling indicator LED2; the grounding terminal of the alarm module is grounded.

[0037] In this embodiment, considering that the relay J1 switch may not disconnect when the preset upper limit temperature is reached due to a fault in relay J1 or other circuit faults, which may cause the baking equipment to continue heating and cause serious losses, a cooling circuit is provided.

[0038] Specifically, the resistance of thermistor RT2 decreases as the temperature rises. When the resistance exceeds the reference voltage at the inverting input of operational amplifier U2, the output of operational amplifier U2 outputs a high-level signal. At this time, transistor Q1 is turned on, relay J2 is energized, the control switch is engaged, the cooling device is connected to the power supply, and cooling is performed. At the same time, the cooling indicator LED2 lights up, and the alarm module sounds an alarm.

[0039] Resistor R3 is a hysteresis resistor because when the resistance value of the thermistor RT2 changes, the voltage at the non-inverting input and the inverting input of the operational amplifier U2 becomes equal, and its output state becomes uncertain. This causes the transistor Q1 to be continuously turned on and off. Resistor R3 will change the voltage at the non-inverting input to avoid this phenomenon.

[0040] As can be seen from the above, this disclosure provides an additional temperature protection mechanism for the baking equipment through the temperature anomaly handling module 16. When the internal temperature of the baking equipment rises abnormally, the temperature anomaly handling module 16 can respond quickly, start the cooling equipment, effectively prevent the equipment from overheating, and protect the equipment from damage. Resistor R3, as a hysteresis resistor, avoids uncertain changes in the output state when the voltage at the input of operational amplifier U2 is equal due to changes in the resistance value of the thermistor RT2. By introducing hysteresis characteristics, this disclosure can more stably control the operation of the cooling equipment.

[0041] The above embodiments are only used to illustrate the technical solutions of this disclosure, and are not intended to limit it. Although this disclosure has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this disclosure.

Claims

1. A heating control system for a baking equipment, characterized in that, include: Temperature detection module, humidity detection module, central control module, temperature setting module, temperature control module, and temperature control equipment; The output terminal of the temperature detection module is connected to the input terminal of the temperature setting module; the output terminal of the temperature setting module is connected to the input terminal of the temperature control module. The output terminal of the temperature control module is connected to the temperature control device; The output terminal of the humidity detection module is connected to the input terminal of the central control module; the output terminal of the central control module is connected to the control terminal of the temperature setting module. The temperature detection module is used to detect the baking temperature inside the baking equipment, and the humidity detection module is used to detect the baking humidity inside the baking equipment.

2. The heating control system of the baking equipment as described in claim 1, characterized in that, The temperature setting module includes: an upper temperature setting unit and a lower temperature setting unit; The control terminal of the temperature upper limit setting unit is connected to the first output terminal of the central control module; The control terminal of the temperature limit setting unit is connected to the second output terminal of the central control module.

3. The heating control system of the baking equipment as described in claim 2, characterized in that, The temperature upper limit setting unit includes: switch K1, sliding resistor RP1, sliding resistor RP2 and sliding resistor RP3; The switch K1 is a single-pole three-throw switch; the stationary terminal of the switch K1 is connected to the output terminal of the temperature detection module, the first moving terminal of the switch K1 is connected to the first terminal of the sliding resistor RP1, the second moving terminal of the switch K1 is connected to the first terminal of the sliding resistor RP2, and the third moving terminal of the switch K1 is connected to the first terminal of the sliding resistor RP3; the control terminal of the switch K1 is connected to the central control module. The second terminals of the sliding resistor RP1, the sliding resistor RP2, and the sliding resistor RP3 are all grounded; The sliding terminals of the sliding resistors RP1, RP2, and RP3 are all connected to the threshold input terminal of the temperature control module.

4. The heating control system of a baking equipment as described in claim 2, characterized in that, The temperature control module includes: a temperature control chip U1, a capacitor C3, a heating indicator LED1, a diode D2, and a relay J1; The temperature control device includes: a heating device; The grounding terminal of the temperature control chip U1 is grounded through the capacitor C3; the control terminal of the temperature control chip U1 is grounded; the trigger terminal of the temperature control chip U1 is connected to the lower limit setting unit; and the threshold input terminal of the temperature control chip U1 is connected to the upper limit setting unit. The reset terminal and the power terminal of the temperature control chip U1 are both connected to a power source; the output terminal of the temperature control chip U1 is connected to the anode of the heating indicator LED1. The cathode of the heating indicator LED1 is connected to the cathode of the diode D2 and the first input terminal of the relay J1, respectively; the second input terminal of the relay J1 is grounded, and the first output terminal of the relay J1 is connected to the power supply terminal of the heating device; the second output terminal of the relay J1 is connected to the power supply. The grounding terminal of the heating equipment is grounded.

5. The heating control system of a baking equipment as described in claim 1, characterized in that, The humidity detection module includes: a humidity sensor, a first window comparator, a second window comparator, and a third window comparator; The humidity sensor is connected to the input terminals of the first window comparator, the second window comparator, and the third window comparator, respectively. The non-inverting input of the first window comparator is used to receive the humidity reference signal Vref1, and the inverting input of the first window comparator is used to receive the humidity reference signal Vref2. The non-inverting input of the second window comparator is used to receive the humidity reference signal Vref3, and the inverting input of the second window comparator is used to receive the humidity reference signal Vref4. The non-inverting input of the third window comparator is used to receive the humidity reference signal Vref5, and the inverting input of the third window comparator is used to receive the humidity reference signal Vref6. The outputs of the first window comparator, the second window comparator, and the third window comparator are all connected to the central control module.

6. The heating control system of the baking equipment as described in claim 1, characterized in that, Also includes: Temperature anomaly handling module; The temperature control device includes: a cooling device; The temperature anomaly handling module is connected to the cooling device.

7. The heating control system of the baking equipment as described in claim 6, characterized in that, The temperature anomaly handling module includes: a thermistor RT2, a resistor R1, a resistor R2, a resistor R3, a sliding resistor RP7, an operational amplifier U2, a transistor Q1, a cooling indicator LED2, and a relay J2. The first terminal of the thermistor RT2, the first terminal of the sliding resistor RP7, and the sliding terminal of the sliding resistor RP7 are all connected to a power source. The second terminal of the thermistor RT2 and the first terminal of the resistor R1 are both connected to the inverting input terminal of the operational amplifier U2; The second end of the sliding resistor RP7 and the first end of the resistor R2 are both connected to the non-inverting input of the operational amplifier U2; The second terminals of resistor R1 and resistor R2 are both grounded; The output terminal of the operational amplifier U2 is connected to the non-inverting input terminal of the operational amplifier U2 through the resistor R3; The output terminal of the operational amplifier U2 is connected to the base of the transistor Q1; The first input terminal and the first output terminal of the relay J2 are both connected to the power supply; the second input terminal of the relay J2 and the ground terminal of the cooling device are both connected to the collector of the transistor Q1; the second output terminal of the relay J2 is connected to the power supply terminal of the cooling device. The emitter of the transistor Q1 is connected to the anode of the cooling indicator LED2; the cathode of the cooling indicator LED2 is grounded.

8. The heating control system of the baking equipment as described in claim 7, characterized in that, Also includes: Alarm module; The power supply terminal of the alarm module is connected to the cathode of the cooling indicator LED2; the grounding terminal of the alarm module is grounded.

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